Cloves hullee



(No Model.) I 4 Sheets-Sheet 2.

H. BURPEIND.

CLOVER, HULLER.

N0. 393,613. I Patented Nov. 27, 1888..

l I l N. PETERS. Pmwnw m Whhingtnn. 0.0

4 Sheets-Sheet 3.

(NoModeL) H. BURFEIND. 'GLOVEB. HU'LLER. No. 393,613. Patented Nov. 27,1888.

4 Sheets-Sheet 4.

(No ModeL) H. BURFEIND! CLOVER HULLBR.

Patented Nov. 27, 1888.

N PEI'ERS Pbotwlhographr, Wuhiuglon. 041C- UNITED STATES PATENT OFFICE.

HERMANN 'BURFEIND, OF FROHNA, MISSOURI.

CLOVER-HULLER.

SPECIFICATION forming part of Letters Patent No. 393,613, dated November 27, 1888.

Application filed March 26, 1887. Serial No. 232,505. (No model.)

To aZZ whom it may concern:

Be it known that I, HERMANN BURFEIND, of Frohna, in the county of Perry and State of Missouri, have invented a certain new and useful Improvement in Clover Hullers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to that part of the machine in which the seed is separated from the husks, &c., the other part of the machine forming the subject-matter of an application, Serial No. 282,504, for patent of even date herewith.

' Figure I is a top view of the part of themachine to which the present invention applies, the other 'part of the machine being shown in outline. Fig. II is an enlarged rear view of same. Fig. III is an enlarged vertical section at III III, Fig. I. Fig. IV is a perspective view of the vibratory shoe. Fig.V is a perspective view of the outer member of the clutch upon the thrasher-cylinder shaft, and Fig. VI is a perspective view of the inner member of said clutch. Fig. VII is a perspective view of the shaker-lever and connections. Fig. VIII is a detail top view of one of the teeth of the concave. Fig. IX is an enlarged detail section at IX 1X, Fig. III. Fig. X is a perspective of the casting forming the main supporting-beam of that part of the machine which forms the subject of the present application. Fig. XI is a detail side view of the mechanism for raising the front end of the draft-frame. Fig. XII is an enlarged detail perspective view of part of one of the serrated ribs of the concave. Fig. XIII is a perspective view of part of one of the tooth-bars of the thrashing-cylinder, and Fig. XIII is an enlarged view of the same.

At 1 is shown in outline partof the frame of the harvester, or that portion of the machine which strips the clover-heads from the stems and conducts them to that portion of the machine which forms the subject of the present application.

2 is a casting to which the other parts are attached and which has bearings at 3 upon the axle-shaft 19, said axle being supported on wheels at each end in a manner to cause the rotation of the shaft when the wheels turn forward, but to allow the free backward turning of the wheels without affecting the axle. This is done by ratchet-clutches between the wheels and the axles, as described in my application for patent of even date herewith, and part of the frame 1 of which is shown in outline. One of these wheels is shown at 17.

The casting 2, which forms the main supporting-beam, is connected to the rear end of the draft-tongue 4 by a joint, 5, which turns in a vertical plane. Upon the pintle-pin of this joint is a hinged strut, 6, to whose upper part are connected rods or links 7 and 8. The link or rod 7 is connected directly to the tongue at 9, and the link or rod 8 is connected to a lever, 10, which works beside a guide, 11, having at top notches 12 to receive the point of the latch 13 upon the lever 10. (See Fig. XI.) The device is a very common one for holding a hand-lever in position and needs no further explanation. 14 is another hand-lever which is attached to the rock-shaft 50. Upon the rock-shaft is an arm, 49, whose end is turned at a right angle and engages in a socket of the frame 1. The arrangement is such that when the lever 14 is pulled backward it throws up the arm 49, and thus lifts the front end of the frame 1, so as to adjust it to the height of the clover to be cut.

The lever 14 is held in position by asimilar device to that described in connection with the lever 10, the guide-bars being shown at 15 and the latch at 16. The action of the lever 10 is to raise or lower the front end of the casting 2, and with it the whole frame of the thrashing part of the machine. The frame 18 may be of any suitable construction to give support to the working parts. I prefer to make it of angle-iron because it is strong for its weight and gives easy means for attachment of the working parts and main casting 2.

The clover-heads after removal from their stalks are deposited at the bottom of an elevator, 20, having endless belts 21, carrying crossbars with brushes 22. The elevator delivers the material into the feed-chute of the thrasher. The concave 23 of the thrasher has a number of ribs, 24, extending from the receiving to, the discharging end of the concave and armed at top and both sides with small angular ribs or teeth 25,extending transversely to the length of the ribs 24 and across thebot toms of the grooves between the ribs. (See Figs. III, VIII, IX, and XII.) The ribs are wider at the base than at the top. The teeth 27 of the thrashing-cylinder have the same form in transverse section as the ribs, as seen in Figs. IX and XIII, so that there is aspace, 28, of equal width between the teeth and the ribs and between the outer edges of the ribs and teeth, and the bottom of the grooves between said ribs and teeth. This space is of sufficient width to allow the clover-seeds to pass through without injury, but not wide enough to allow the seeds when enveloped in chaff to pass through without rupture of the chaff. The space 28 is shown by a black line in Fig. IX. The teeth 27 are formed intcgrally with bars 30, whichare placed in grooves 31, extending the length of the cylinder 26. The bars 30 are made fast to one side of the grooves by bolts extending through the bars.

It will be observed on reference to Figs. III and XIII that the teeth 27 are prolonged in a direction at right angles to the length of the bar 30, so that they project laterally therefrom in such a manner as to be parallel to each other and in planes at right angles to the axis of the cylinder 26. These teeth may project any desired distance and form ribs encircling a greater or less proportion of the circumference of the cylinder.

The whole circumference of the cylinder between the teeth 27 is covered with small angular grooves 29, extending lengthwise of the same. From the thrashing cylinder the thrashed material passes into a cylindrical box or case, 82, whose axis is parallel with that of the hulling-cylinder. The case 32 is occupied by what I denominate a pocket-wheel, consisting of a shaft, 33, and blades or wings 34-, that radiate from said shaft and extend nearly to the interior of the case forming pockets. The purpose of this wheel is partly to prevent the seeds being thrown too far by the thrashing operation, and also to insure the regular feeding of the material to the riddles of the cleaner. As the wheel rotates steadily, the contents of each pocket are regularly carried over the floor of the chamber or case and dumped upon the end of the riddle 35, over which it passes until the seed drops through, while the straws and other coarse material are thrown off the riddle at the rear. The seed, whether clean or enveloped in its husk, and also the heads containing seeds, fall upon a finer riddle, 36, through which the clean seeds pass and are received on the inclined bottom 37 of the vibrating shoe 38, which bears the riddles. Thence the seeds run into a transverse chute, 39, in the bottom of the shoe and down the chute to the receiver 40. The tailings escaping from thelower end of theriddlc 36 falls into a chute or trough, 41, which discharges into an elevator, 42, and is by said elevator returned to the thrasher case 43 through a spent, 44.

The shoe 38 is supported on springhangers 45, attached at the upper end to the frame 18,

and is guided by a bar, 46, which passes through eyes in the sides of the shoe and whose ends are attached to the case or frame 18. 47 is a rotary fan, which blows the light and worthless material out at the rear of the shoe. The fan-shaft 48 carries a crank, 51, connected by a rod, 52, to an arm of a bellcrank, 53, whose other arm is connected by a link, 5-1, to the shoe, so that the rotation of the shaft causes the transverse vibration of the shoe. (See Figs. Ill and VII.)

The mechanism for imparting motion from the axle 19 to the thrashing-cylinder elevators, &c., will be now described. 55 is a bevel cogwheel on the axle, which engages a similar wheel, 56, on a shaft, 57, having bearing in boxes 57 of the casting 2. The shaft 57 is longitudinal to the machine, and thus at right angles to the axle-shaft. At the rear end of the shaft 57 is aspur-whccl, 58, which engages with a'pinion, 59, on the shaft 60. The shaft 60 carries a spur-wheel, 61, which engages with a cog" wheel, (32, forming part of the outer member, (33, of a clutch, whose inner member or hub,6-1,is keyed to the shaft of the thrashing-cylinder 26. The inner member,64-,of the clutch carries a pawl, 66, which is forced outward by a spring, 67, to engage in a recess, (-58, made in the inner circumference of the outer member, 63. The construction is such that when the machine is going forward and. the outer part or member of the clutch turning in the direction indicated by the arrow the thrashing-cylindcr turns with it. When, however, the machine ceases to moveforward, the momentum of the cylinder causes its continued rotation until the momentum is overcome by friction. Thus injuryis avoided from sudden stoppage of the thrashing-cylinder and the parts in connection with it. (See Figs. V and VI.) The thrashing-cylinder (55 carries a pulley, (59, connected by a belt, 70, with a pulley, 7]., upon the shaft of the rotary .fan. The shaft 60 carries a pulley, 72, connected by a belt, 73, with a pulley, 74-, upon the shaft 75, which carries the drive-pulleys 76 of the elevator 20. The shaft carries a pulley, 77, connected by a belt, 78, with apulley, 79, upon the shaft 83 of the poekct-wheel. This shaft 33 carries a pulley, 80, connected by a belt, 81, with a pulley, 82, upon the shaft 83, carrying the drive-pulleys of the tailingselevator 42.

Set is the drivers seat.

85 is a brace-rod extending from the tongue to the frame 1.

I have described certain mechanism for moving the parts, but this may be changed without essential change in the principles of the invention.

I claim as my invention- 1. In a clover-huller, the combination, with a concave, of a cylinder having longitudinal recesses formed in its periphery, a series of bars secured to the rear side walls of said recesses, and a series of corrugated teeth sccured on said bar, substantially as described.

ICC

2. In a clover-hu1ler, the combination, with of motion of the cylinder, and a series of teeth a recessed cylinder, of a series of bars fastened having inclined curved sides and flat tops, in said recesses, having teeth extending out said sides and tops provided with outwardlyfrom their edges and .beyond their sides, said projecting teeth arranged transversely to the 15 5 teeth having vertical outer edges and corruline of movement of the cylinder, substantially gated side and tops, substantially as described. as described.

3. In a clover-huller, the combination, with a concave having corrugated ribs extending HERMANN B from its receiving to its discharging points, of In presence 0f 10 acylinderhaving its surface armed with small MATHILDE BURFEIND,

angular ribs extending transversely to the line FERDINAND BURFEIND. 

